I'd reckon BHP will need to pay $40 to get OZL.
BHP is trying to steal OZL at $25,
I remember I was a shareholder of Western Mining Corp WMC many years ago when BHP wanted Olympic Dam and Kambalda nickel.
They paid good money in the end, BHP has made a fortune from Olympic Dam.
Don't let them buy OZL cheap.
Other copper producers will be on investors radar after this like Aeris AIS.